Publications by authors named "Zateyshchikov D"

Background: Patients with chronic thromboembolic pulmonary hypertension (CTEPH) in countries with limited resources have, to date, been poorly represented in registries.

Objective: This work assesses the epidemiology, diagnosis, hemodynamic and functional parameters, and treatment of CTEPH in Russia, Kazakhstan, Turkey, Lebanon, and Saudi Arabia.

Methods: A prospective, cohort, phase IV, observational registry with 3-year follow-up (n = 212) in patients aged ≥ 18 years diagnosed with CTEPH was created.

View Article and Find Full Text PDF

Transthyretin amyloidosis (ATTR-amyloidosis) is a systemic disorder associated with extracellular deposition in the tissues and organs of amyloid fibrils, transthyretin-containing insoluble protein-polysaccharide complexes. The change in transthyretin conformation, leading to its destabilization and amyloidogenicity, can be acquired (wild type, ATTRwt) and hereditary due to mutations in the gene (variant, ATTRv) [1, 2]. Hereditary ATTR-amyloidosis has an earlier onset and greater phenotypic diversity.

View Article and Find Full Text PDF

Background: Hypertrophic cardiomyopathy (HCM) is the most common inherited heart disease; it is characterized by left ventricular (LV) hypertrophy that cannot be explained by hemodynamic causes. It is believed that sarcomere dysfunction underlies the pathogenesis of this disease, however, only half of patients with the HCM phenotype have mutations in sarcomere-encoding genes. HCM is distinguished by both high genetic and clinical heterogeneity and therefore more studies are seeking to investigate a regulation of gene expression in HCM and how the abnormalities in this process can affect disease phenotype.

View Article and Find Full Text PDF

Hypertrophic cardiomyopathy (HCM) is a common inherited cardiac disorder characterized by marked clinical and genetic heterogeneity. Ethnic groups underrepresented in studies may have distinctive characteristics. We sought to evaluate the clinical and genetic landscape of Russian HCM patients.

View Article and Find Full Text PDF

Inherited cardiomyopathies (CMPs) are fairly common causes of morbidity and mortality, particularly, in young individuals. In substantial number of cases, only morphological diagnostic criteria cannot distinguish one CMP from another because of incomplete penetrance, advanced stage of the disease, or overlapping phenotypes. Genetic testing has become a mandatory tool for definite diagnosis that is required for family screening, individual prognosis, and personalized treatment strategy in routine practice.

View Article and Find Full Text PDF

Hypertrophic cardiomyopathy (HCM) is the most common inherited heart disease; its pathogenesis is still being intensively studied to explain the reasons for the significant genetic and phenotypic heterogeneity of the disease. To search for new genes involved in HCM development, we analyzed gene expression profiles coupled with DNA methylation profiles in the hypertrophied myocardia of HCM patients. The transcriptome analysis identified significant differences in the levels of 193 genes, most of which were underexpressed in HCM.

View Article and Find Full Text PDF

This paper summarizes the data from updated international protocols and guidelines for diagnosis of transthyretin amyloid cardiomyopathy (ATTR-CM). The invasive and non-invasive diagnosis techniques and their combinations are briefly reviewed; the evidentiary foundations for each diagnostic option and tool are analyzed. The paper describes a customized algorithm for sequential diagnosis and differential diagnosis of patients with suspected ATTR-CM with allowance for the combination of clinical signs and diagnostic findings.

View Article and Find Full Text PDF

In recent decades, advances in molecular biology have led to a change in understanding the inheritance mechanisms and development of cardiological diseases of predominantly genetic origin, such as hypertrophic and dilated cardiomyopathies, familial hypercholesterolemia, etc. This knowledge made it possible to develop fundamentally new drug interventions. Programs for detecting cardiac diseases of predominantly genetic origin have been created, including genetic counseling and testing.

View Article and Find Full Text PDF

To study the readiness of Russian physicians with experience and younger physicians undergoing clinical residency and postgraduate education to apply pharmacogenetic testing in their clinical practice. The sociological study involved physicians (n = 378) living in different regions of the Russian Federation, as well as residents and graduate students (n = 185) of the Russian Medical Academy of Continuing Professional Medical Education. The survey consisted of 35 questions, and 23 were created on the online platform of professional surveys, Testograf.

View Article and Find Full Text PDF

Hypertrophic cardiomyopathy (HCM) is the most common inherited myocardial disease with significant genetic and phenotypic heterogeneity. To search for novel biomarkers, which could increase the accuracy of HCM diagnosis and improve understanding of its phenotype formation, we analyzed the levels of circulating miRNAs—stable non-coding RNAs involved in post-transcriptional gene regulation. Performed high throughput sequencing of miRNAs in plasma of HCM patients and controls pinpointed miR-499a-5p as one of 35 miRNAs dysregulated in HCM.

View Article and Find Full Text PDF

Aim      To evaluate the prognostic significance of the left ventricular global function index (LV GFI) in patients with acute coronary syndrome (ACS) using echocardiography (EchoCG).Material and methods             The LV GFI is an index that integrates LV cavity volumes, stroke volume, and myocardial volume. This study included 2169 patients with ACS (1340 (61.

View Article and Find Full Text PDF

Aims: The aim of this study was to determine the frequency of heterozygous truncating ALPK3 variants (ALPK3tv) in patients with hypertrophic cardiomyopathy (HCM) and confirm their pathogenicity using burden testing in independent cohorts and family co-segregation studies.

Methods And Results: In a discovery cohort of 770 index patients with HCM, 12 (1.56%) were heterozygous for ALPK3tv [odds ratio(OR) 16.

View Article and Find Full Text PDF

The impact of the de-escalation strategy of antiplatelet therapy (APT) on the life expectancy after acute coronary syndromes (ACS) and percutaneous coronary intervention (PCI) requires an assessment in real clinical practice. Into the Russian multicentral observational trial (ORACLE II ClinicalTrials.gov number, NCT04068909), 1803 patients with ACS and PCI indications were enrolled.

View Article and Find Full Text PDF

Aim      To develop a model for evaluating the risk of stroke in patients after exacerbation of ischemic heart disease who were admitted to the hospitals included into a vascular program.Materials and methods This study included 1803 patients with acute coronary syndrome (ACS) from four institutions of Moscow, Kazan, Astrakhan, and Krasnodar where the vascular program was established. Mean age of patients was 64.

View Article and Find Full Text PDF

Aim        To analyze results of changing the management tactics in patients with acute coronary syndrome (ACS) in clinical practice from 2004 through 2018 expressed as improvement in prognosis.Material and methods        Results of two observational studies were analyzed: ORACLE I (2004-2007), which included 1193 patients with ACS (mean age, 61.1±11.

View Article and Find Full Text PDF

The beginning of 2020 was characterized by the development of a new coronavirus pandemic (COVID-19). Information about the epidemiology, etiology, pathogenesis, clinical and laboratory diagnostics, as well as prevention and therapy for this disease is constantly being expanded and reviewed. The COVID-19 pandemic creates the need for the emergence of new conditions of specialized care for patients with heart rhythm and conduction disorders [1].

View Article and Find Full Text PDF

A total of 263 warfarin naive patients with indications to long-term anticoagulation were included in prospective multicenter study and randomized into Pharmacogenetics and Standard dosing groups. The loading warfarin dose in Pharmacogenetics group was calculated by Gage algorithm and corrected starting on day 5 of treatment according to INR. In Standard dosing group warfarin initial dose was 5 mg and starting on day 3 of treatment it was titrated according to INR.

View Article and Find Full Text PDF

Aim: To validate a domestic scale for assessment risk of bleeding ORACUL (ОРАКУЛ) based on an independent sample of patients with acute coronary syndrome (ACS).

Materials And Methods: External validation of the ORACUL score was carried out using database of an independent observational study RECORD-3 which comprised data from all patients hospitalized for 1 month (march-april 2015) in 47 centers of 37 cities in 21 regions of Russia. Total number of included patients was 2370, mean age 64.

View Article and Find Full Text PDF

Objectives: The aim of this study was to assess if prior oral anticoagulant agent (OAC) use modifies the lower bleeding risk observed with dabigatran dual therapy (dabigatran twice daily plus a P2Y inhibitor) versus warfarin triple therapy (warfarin plus a P2Y inhibitor plus aspirin) in patients with atrial fibrillation who underwent percutaneous coronary intervention (PCI).

Background: In the RE-DUAL PCI (Randomized Evaluation of Dual Antithrombotic Therapy With Dabigatran Versus Triple Therapy With Warfarin in Patients With Nonvalvular Atrial Fibrillation Undergoing Percutaneous Coronary Intervention) trial, the primary outcome of major bleeding or clinically relevant nonmajor bleeding was lower with dabigatran dual therapy versus warfarin triple therapy in patients with atrial fibrillation who underwent PCI.

Methods: A total of 2,725 patients were randomized to dual therapy with dabigatran (110 or 150 mg twice daily) plus clopidogrel or ticagrelor or triple therapy with warfarin plus aspirin and clopidogrel or ticagrelor.

View Article and Find Full Text PDF

Background: Patients with stable coronary artery disease and diabetes mellitus who have not had a myocardial infarction or stroke are at high risk for cardiovascular events. Whether adding ticagrelor to aspirin improves outcomes in this population is unclear.

Methods: In this randomized, double-blind trial, we assigned patients who were 50 years of age or older and who had stable coronary artery disease and type 2 diabetes mellitus to receive either ticagrelor plus aspirin or placebo plus aspirin.

View Article and Find Full Text PDF

Lipid metabolism disorders are the most significant risk factor of development of cardiovascular diseases (CVD). In the process of diagnosing ischemic heart disease and other cardiovascular pathologies, levels of total cholesterol, low- and high- density lipoprotein cholesterol, triglycerides are determined. However, in recent years, close attention has been paid to the intersection of the metabolic pathways of the biosynthesis of cholesterol and sphingolipids.

View Article and Find Full Text PDF

Unlabelled: The aim of the study was to analyze clinical features of patients with premature acute coronary syndrome (ACS) in relation to family history of cardiovascular disease (CVD) and familial hypercholesterolemia (FH).

Materials And Methods: Of 2832 patients included in ORACUL 1 and ORACUL 2 multicenter observational trials 512 pts who developed premature ACS (≤55 years for men, ≤60 years for women) and had known family history and LDL level were selected for this study. Of these patients 297 had positive family history (51 with FH, 246 no FH), 215 had negative family history.

View Article and Find Full Text PDF

Non-vitamin K antagonist oral anticoagulants (NOACs), which inhibit thrombin (dabigatran) and factor Xa (rivaroxaban, apixaban, edoxaban) have been introduced in several clinical indications. Although NOACs have a favourable benefit-risk profile and can be used without routine laboratory monitoring, they are associated-as any anticoagulant-with a risk of bleeding. In addition, treatment may need to be interrupted in patients who need surgery or other procedures.

View Article and Find Full Text PDF

Purpose: to analyze results of percutaneous coronary intervention (PCI) in patients with acute ST- elevation myocardial infarction performed after prehospital thrombolysis in real clinical practice.

Material: In the period from 2008 to 2013 144 and 577 patients were subjected to PCI after prehospital thrombolysis with tenecteplase (pharmacoinvasive group - PhG) and primary PCI (PPCIG), respectively.

Results: PhG compared with PPCIG contained younger patients (mean age 56.

View Article and Find Full Text PDF

Aim: to elucidate association between polymorphic markers of interleukin-6 (Il-6) and tumor necrosis factor (TNF) genes and unfavorable outcomes in patients with chronic heart failure (CHF).

Material And Methods: We determined levels of TNF and Il-6 and genotypes of polymorphic markers G(-238)A of TNF gene (rs361525) and G(--174)C of IL-6 gene (rs1800795) in 151 patients (mean age 64.5 years) hospitalized because of decompensation of systolic CHF (left ventricular ejection fraction ≤ 40%) after stabilization of their state.

View Article and Find Full Text PDF